A length adjustment device and a laser treatment handle

Abstract

The present invention relates to the technical field of lasers, and specifically discloses a length adjustment device and a laser treatment handle. In this length adjustment device, the first connecting member is provided with a first channel; one end of the second connecting member passes through the first channel. When the second connecting member is rotated with a first force, when the first connecting member and the second connecting member rotate relative to each other, the other end of the second connecting member moves away from or close to the first connecting member; among the card slot and the clamping assembly, one is provided on the first connecting member and the other is provided on the second connecting member; the extending direction of the card slot is the same as the extending direction of the first channel; when the clamping assembly is clamped in the card slot, when the second connecting member is rotated with a second force, the first connecting member and the second connecting member can rotate relative to each other, driving the clamping assembly to separate from the card slot, and the second force is greater than the first force. The above setting can adjust the distance between the other end of the second connecting member and the first connecting member, so as to realize the adjustment of the laser focal length and avoid replacing the treatment head when treating diseased tissues at different depths.

Description

Technical Field

[0001] The present invention relates to the technical field of lasers, and particularly to a length adjusting device and a laser treatment handle. Background Art

[0002] In the laser beauty industry, a laser treatment handle can achieve the purpose of treating a patient's diseased tissue, such as the honeycomb lattice handle and the DOE diffractive handle of a picosecond laser treatment device. The purpose of such handles is to disperse and focus the large-spot parallel beam output by the laser into multiple smaller micro-beams in a dot matrix pattern. In this way, a smaller treatment wound surface can be achieved, and the laser energy can be more concentrated.

[0003] A treatment head is installed at the end of the laser treatment handle. The end face of this treatment head is also called the treatment surface and is in direct contact with the patient's skin. Since each micro-beam emitted from the handle is a converging light with a fixed focus position and focal length, changing the length of the treatment head can change the position of the treatment head end face relative to the focus of the micro-beam. Under normal circumstances, the focus position is below the treatment head end face. Since the treatment head end face is in contact with the patient's skin, the focus position of the micro-beam will be inside the patient's skin. Changing the length of the treatment head can change the depth at which the micro-beam converges in the patient's skin tissue, such as the epidermis, dermis, etc., so as to achieve the purpose of treating diseased tissues at different depths of the patient's skin and meet clinical needs.

[0004] In clinical applications, it is common to change the treatment depth by replacing treatment heads of different lengths. Some laser treatment devices are only equipped with a treatment head of one length, that is, a fixed treatment depth.

[0005] The disadvantage of the method of replacing treatment heads of different lengths is that there are many treatment heads, the replacement is troublesome, it is easy to lose, and the adjustment range is discontinuous, and there are only a few fixed treatment depths corresponding to the treatment heads. If the treatment depth needs to be increased, the number of treatment heads needs to be increased. The disadvantage of only being equipped with a treatment head of one length is that the treatment depth is fixed and cannot meet the clinical needs of treating diseased tissues at different depths of the skin. Summary of the Invention

[0006] The purpose of the present invention is to provide a length adjusting device and a laser treatment handle, which can not only meet the clinical needs of treating diseased tissues at different depths of the skin, but also do not require replacing the treatment head and avoid losing the treatment head.

[0007] To achieve the above object, the present invention adopts the following technical solutions:

[0008] On the one hand, the present invention provides a length adjusting device, which includes:

[0009] A first connecting member, the first connecting member is provided with a first channel;

[0010] A second connecting member, one end of the second connecting member penetrates through the first channel, and the second connecting member is rotated with a first force. When the first connecting member and the second connecting member rotate relative to each other, the other end of the second connecting member moves away from or approaches the first connecting member; among the card slot and the clamping assembly, one is arranged on the first connecting member and the other is arranged on the second connecting member; the extending direction of the card slot is the same as the extending direction of the first channel;

[0011] When the clamping assembly is clamped in the card slot, the second connecting member is rotated with a second force, the first connecting member and the second connecting member can rotate relative to each other, and the clamping assembly is driven to separate from the card slot, and the second force is greater than the first force.

[0012] Preferably, the card slot is arranged on the first connecting member, the clamping assembly includes an elastic member and a clamping member, the elastic member is arranged on the second connecting member and is used to stop the clamping member in the card slot.

[0013] Preferably, the second connecting member includes a connecting cylinder, a fixing groove is arranged on the inner side of the connecting cylinder, an installation hole penetrating through to the fixing groove is arranged on the side wall of the connecting cylinder, the elastic member is arranged in the fixing groove, and the clamping member penetrates through the installation hole and can slide in the installation hole.

[0014] Preferably, the elastic member includes an annular elastic sheet, the fixing groove is annular, the annular elastic sheet is arranged in the fixing groove and has an outward elastic force on the bottom of the fixing groove, driving the clamping member to abut against the bottom of the card slot or the inner wall of the connecting member.

[0015] Preferably, the clamping member includes a ball, and the outer diameter dimension of the ball is greater than the thickness dimension between the outer wall of the connecting cylinder and the bottom of the fixing groove.

[0016] Preferably, a plurality of card slots are provided; the plurality of card slots are arranged at intervals around the center line of the first channel on the side wall of the first channel.

[0017] Preferably, the first connecting member further has a second channel, the second channel and the first channel are coaxially arranged, and the inner diameter of the second channel is greater than the inner diameter of the first channel; the second connecting member further includes a mounting ring, the mounting ring is arranged at one end of the connecting cylinder, the outer diameter of the mounting ring is greater than the inner diameter of the first channel and less than the inner diameter of the second channel, and the connecting cylinder sequentially passes through the second channel and the first channel.

[0018] Preferably, the mounting ring and the side wall of the second channel are threadedly connected; or

[0019] The side wall of the second channel is provided with a spiral groove, and the outer periphery of the mounting ring is provided with a rotating block, and the rotating block can slide in the spiral groove; or

[0020] The side wall of the second channel is provided with a rotating block, and the outer periphery of the mounting ring is provided with a spiral groove, and the rotating block can slide in the spiral groove.

[0021] Preferably, the outer periphery of the second connecting member is provided with an observation hole.

[0022] On the other hand, the present invention provides a laser treatment handle, including the length adjusting device in any of the above solutions.

[0023] The beneficial effects of the present invention are as follows:

[0024] The present invention provides a length adjusting device and a laser treatment handle. One end of the second connecting member is inserted into the first channel of the first connecting member. When the second connecting member is rotated with a first force and can rotate relative to the first connecting member, the other end of the second connecting member can move away from the first connecting member. When the clamping assembly is clamped in the clamping groove, a second force is required to rotate the second connecting member to separate the clamping assembly from the clamping groove, and the second force is greater than the first force. The above setting can adjust the distance between the other end of the second connecting member and the first connecting member, and avoid replacing the treatment head when treating pathological tissues at different depths. The second connecting member and the first connecting member are fixed by the cooperation of the clamping assembly and the clamping groove, so that the displacement generated when the second connecting member rotates relative to the first connecting member can be finely adjusted, and the second connecting member and the first connecting member can be relatively fixed, which is convenient for use. Description of the Drawings

[0025] Figure 1 is a schematic structural diagram of the laser treatment handle in the embodiment of the present invention;

[0026] Figure 2 is an exploded structural diagram of the length adjusting device in the embodiment of the present invention;

[0027] Figure 3 is an internal structural diagram of the length adjusting device in the embodiment of the present invention.

[0028] In the figure:

[0029] 100, handle;

[0030] 1, first connecting member; 11, clamping groove;

[0031] 2, second connecting member; 21, connecting cylinder; 211, fixing groove; 212, mounting hole; 213, observation hole; 22, mounting ring;

[0032] 3, clamping assembly; 31, elastic member; 32, clamping member. Detailed implementation mode

[0033] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work belong to the scope of protection of the present invention.

[0034] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and the first feature being "above", "over" and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the first feature has a lower horizontal height than the second feature.

[0035] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0036] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0037] Embodiment 1

[0038] As Figures 1 - 3As shown, this embodiment provides a length adjustment device, which includes a first connector 1 and a second connector 2. Among them, the first connector 1 is provided with a first channel; one end of the second connector 2 passes through the first channel. When the second connector 2 is rotated with a first force, when the first connector 1 and the second connector 2 rotate relative to each other, the other end of the second connector 2 moves away from or approaches the first connector 1; among the card slot 11 and the clamping assembly 3, one is provided on the first connector 1 and the other is provided on the second connector 2; the extending direction of the card slot 11 is the same as the extending direction of the first channel; when the clamping assembly 3 is clamped in the card slot 11, when the second connector 2 is rotated with a second force, the first connector 1 and the second connector 2 can rotate relative to each other, driving the clamping assembly 3 to separate from the card slot 11, and the second force is greater than the first force. In this embodiment, the treatment head can be installed at the other end of the second connector 2.

[0039] In this embodiment, the above settings can adjust the distance between the other end of the second connector 2 and the first connector 1, so as to realize the adjustment of the laser focal length and avoid replacing the treatment head when treating pathological tissues at different depths. Through the cooperation of the clamping assembly 3 and the card slot 11, the second connector 2 and the first connector 1 are fixed, so that the displacement that occurs when the second connector 2 rotates relative to the first connector 1 can be finely adjusted, and the second connector 2 and the first connector 1 can be relatively fixed, which is convenient for operation and use.

[0040] Preferably, the card slot 11 is provided on the first connector 1, and the clamping assembly 3 includes an elastic member 31 and a clamping member 32. The elastic member 31 is provided on the second connector 2 and is used to stop the clamping member 32 in the card slot 11. This setting can achieve the clamping between the first connector 1 and the second connector 2. Optionally, in this embodiment, the cross-sectional shape of the card slot 11 can be semicircular, triangular or square, etc., and is not limited thereto.

[0041] Regarding the position of the clamping member 32, in this embodiment, optionally, the second connector 2 includes a connecting cylinder 21. The inner side of the connecting cylinder 21 is provided with a fixing groove 211, and the side wall of the connecting cylinder 21 is provided with an installation hole 212 communicating with the fixing groove 211. The elastic member 31 is arranged in the fixing groove 211, and the clamping member 32 passes through the installation hole 212 and can slide in the installation hole 212. In this embodiment, the laser can pass through the connecting cylinder 21. This setting can realize the fixation of the elastic member 31, protect the elastic member 31, and also avoid the elastic member 31 blocking the laser. In this embodiment, the connecting cylinder 21 can be the treatment head.

[0042] Furthermore, the elastic member 31 includes an annular elastic piece. The fixing groove 211 is annular. The annular elastic piece is disposed within the fixing groove 211 and has an outward elastic force on the bottom of the fixing groove 211. This elastic force can drive the engaging member 32 to abut against the bottom of the engaging groove 11 or the inner wall of the connecting member 1. This arrangement enables the elastic member 31 to be firmly stuck within the fixing groove 211 without the need for other fixing members. Additionally, the provision of the annular elastic piece allows one elastic member 31 to correspond to multiple engaging members 32. Of course, in other embodiments, the fixing groove 211 is C-shaped, and the elastic member 31 can be a C-shaped elastic piece.

[0043] Optionally, the engaging member 32 includes a ball. Optionally, the material of the ball is steel; the outer diameter dimension of the ball is greater than the thickness dimension between the outer wall of the connecting cylinder 21 and the bottom of the fixing groove 211. This arrangement can achieve the engagement with the engaging groove 11 and can drive the engaging member 32 to disengage from the engaging groove 11 under the action of a second force. In other embodiments, the engaging assembly 3 and the elastic member 31 can also be replaced with a ball head plug column assembly. Additionally, the ball can be replaced with a square column, the mounting hole 212 is a square hole, and the square column can only expand and contract within the square hole without rotation. One end of the square column close to the engaging groove 11 is in a ball shape or a wedge-shaped structure.

[0044] In addition, the engaging assembly 3 can further include an elastic column. One end of the elastic column is fixed to the second connecting member 2, and the other end can be engaged within the engaging groove 11. The material of the elastic column is rubber.

[0045] In this embodiment, to increase the graduation value, multiple engaging grooves 11 are provided; the multiple engaging grooves 11 are spaced apart around the center line of the first channel on the side wall of the first channel. The number of engaging grooves 11 can also be two. This arrangement enables the second connecting member 2 to be paused multiple times when rotating one full circle relative to the first connecting member 1. Exemplarily, when the second connecting member 2 rotates one full circle and the axial displacement of the second connecting member 2 relative to the first connecting member 1 is P, the number of engaging grooves 11 is M, and the engaging grooves 11 are evenly distributed on the inner wall of the first channel, then each time the engaging assembly 3 engages with the engaging groove 11, the axial displacement of the second connecting member 2 relative to the first connecting member 1 is P / M. In this embodiment, only by changing the number of engaging grooves 11 can the minimum adjustment scale value be changed.

[0046] Preferably, the first connecting member 1 further has a second channel. The second channel and the first channel are coaxially arranged, and the inner diameter of the second channel is greater than the inner diameter of the first channel; the second connecting member 2 further includes a mounting ring 22. The mounting ring 22 is disposed at one end of the connecting cylinder 21. The outer diameter of the mounting ring 22 is greater than the inner diameter of the first channel and less than the inner diameter of the second channel. The connecting cylinder 21 sequentially passes through the second channel and the first channel. In this embodiment, the mounting ring 22 is located within the second channel. This arrangement can prevent the second connecting member 2 from detaching from the first connecting member 1. The mounting ring 22 and the connecting cylinder 21 are integrally formed.

[0047] Further, there is a threaded connection between the mounting ring 22 and the side wall of the second channel. In other embodiments of this embodiment, the side wall of the second channel is provided with a spiral groove, and the outer periphery of the mounting ring 22 is provided with a rotating block that can slide in the spiral groove. The above structures can all achieve the rotation between the second connector 2 and the first connector 1, and can also achieve the function of the axial displacement of the second connector 2 relative to the first connector 1. Of course, in other embodiments of this embodiment, the spiral groove can also be provided on the outer periphery of the mounting ring 22 of the second connector 2, and the rotating block is provided on the side wall of the second channel. The above setting can achieve the continuous adjustment of the second connector 2 relative to the first connector 1.

[0048] Optionally, the pitch between the second connector 2 and the first connector 1 can be adjusted according to requirements, and the telescopic range of the second connector 2 relative to the first connector 1 can also be adjusted according to requirements, which are not limited in this embodiment.

[0049] In this embodiment, optionally, the outer periphery of the second connector 2 is provided with an observation hole 213. This setting facilitates the operator to observe the working state inside the second connector 2. When the laser passes through the second connector 2 to treat the patient's skin, the position and treatment state of the skin tissue can be observed through the observation hole 213. Further, the observation hole 213 includes a groove oppositely provided on the connecting cylinder 21 and penetrating the side wall of the connecting cylinder 21, which facilitates the gripping of the second connector 2 and thus facilitates the rotation of the second connector 2.

[0050] Embodiment Two

[0051] This embodiment also provides a laser treatment handle, including the length adjustment device in the above solution. In this embodiment, the first connector 1 can be screwed or clamped to the handle 100 of the laser treatment handle, or can be integrally formed with the handle 100 of the laser treatment handle.

[0052] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the embodiments here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A length adjustment device, characterized in that, Comprising: A first connector (1), the first connector (1) being provided with a first channel; A second connector (2), one end of the second connector (2) being inserted through the first channel. When the second connector (2) is rotated with a first force, when the first connector (1) and the second connector (2) rotate relative to each other, the other end of the second connector (2) moves away from or approaches the first connector (1); the extending direction of the card slot (11) is the same as the extending direction of the first channel; When the clamping component (3) is clamped in the card slot (11), when the second connector (2) is rotated with a second force, the first connector (1) and the second connector (2) can rotate relative to each other, driving the clamping component (3) to separate from the card slot (11), and the second force is greater than the first force; The card slot (11) is arranged on the inner wall of the first connector (1), and the clamping component (3) includes an elastic member (31) and a clamping member (32), the elastic member (31) being arranged on the second connector (2) for stopping the clamping member (32) in the card slot (11); The second connector (2) includes a connecting cylinder (21), the inner side of the connecting cylinder (21) being provided with a fixing groove (211), the side wall of the connecting cylinder (21) being provided with a mounting hole (212) communicating with the fixing groove (211), the elastic member (31) being arranged in the fixing groove (211), and the clamping member (32) being inserted through the mounting hole (212) and being able to slide in the mounting hole (212); The elastic member (31) includes an annular elastic sheet, the fixing groove (211) is annular, the annular elastic sheet is arranged in the fixing groove (211), and has an outward elastic force on the bottom of the fixing groove (211), driving the clamping member (32) to abut against the bottom of the card slot (11) or the inner wall of the first connector (1).

2. The length adjustment device according to claim 1, characterized in that, The clamping member (32) includes a ball, and the outer diameter dimension of the ball is greater than the thickness dimension between the outer wall of the connecting cylinder (21) and the bottom of the fixing groove (211).

3. The length adjusting device according to claim 1, characterized in that The number of the card slots (11) is multiple; the multiple card slots (11) are spaced around the center line of the first channel and arranged on the side wall of the first channel.

4. The length adjustment device according to claim 1, characterized in that The first connector (1) is further provided with a second channel, the second channel and the first channel being coaxially arranged, and the inner diameter of the second channel being greater than the inner diameter of the first channel; the second connector (2) further includes a mounting ring (22), the mounting ring (22) being arranged at one end of the connecting cylinder (21), the outer diameter of the mounting ring (22) being greater than the inner diameter of the first channel and less than the inner diameter of the second channel, and the connecting cylinder (21) sequentially passes through the second channel and the first channel.

5. The length adjustment device according to claim 4, characterized in that, The mounting ring (22) is threadedly connected to the side wall of the second channel; or The side wall of the second channel is provided with a spiral groove, and the outer periphery of the mounting ring (22) is provided with a rotating block, and the rotating block can slide in the spiral groove; or The side wall of the second channel is provided with a rotating block, and the outer periphery of the mounting ring (22) is provided with a spiral groove, and the rotating block can slide in the spiral groove.

6. The length adjustment device according to claim 1, wherein, The outer periphery of the second connecting member (2) is provided with an observation hole (213).

7. A laser treatment handle, characterized in that, Comprising the length adjusting device according to any one of claims 1-6.

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